You are viewing the version of this documentation from Perl blead. This is the main development branch of Perl. (git commit e8bbad6bd1fa8beb5a951a859f0028ccffd792b2)
${^POSTMATCH}

It is only guaranteed to return a defined value when the pattern was compiled or executed with the /p modifier.

This is similar to $' ($POSTMATCH) except that to use it you must use the /p modifier when executing the pattern, and it does not incur the performance penalty associated with that variable.

See "Performance issues" above.

This variable was added in Perl v5.10.0.

This variable is read-only, and its value is dynamically scoped.